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CVE-2022-42716

Description

An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Valhall r29p0 through r40P0.

POC

Reference

- http://packetstormsecurity.com/files/170420/Arm-Mali-CSF-KBASE_REG_NO_USER_FREE-Unsafe-Use-Use-After-Free.html

- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Github

- https://github.com/1337eng/arm_mali_open_source_drivers